Hantering av säkerhetsfarliga fel inom järnvägsinfrastruktur utifrån tillståndsbedömning med mätvagn
(2014)Programmes in Helesingborg
- Abstract
- A train accident at high speeds can result in serious consequences, and in worst case the loss of human life. Hence, there are stringent requirements related to traffic safety on the railway system. These requirements are valid for both the infrastructure and the rolling stock.
The overall purpose of this work is to increase the understanding of the management of safety critical faults within the railway system, and thereby support an effective management of safety critical faults with maintained or increased safety. The work explores how the evaluation and follow-up of safety critical faults are performed and what facts that decisions about actions related to safety critical faults are based on. The goal of the work is to identify... (More) - A train accident at high speeds can result in serious consequences, and in worst case the loss of human life. Hence, there are stringent requirements related to traffic safety on the railway system. These requirements are valid for both the infrastructure and the rolling stock.
The overall purpose of this work is to increase the understanding of the management of safety critical faults within the railway system, and thereby support an effective management of safety critical faults with maintained or increased safety. The work explores how the evaluation and follow-up of safety critical faults are performed and what facts that decisions about actions related to safety critical faults are based on. The goal of the work is to identify overarching suggestions for actions to improve the management of safety critical infrastructure faults within the Swedish railway, by an analysis of data obtained from measurement wagons.
The overarching methodology in this work is a case study of the Iron ore line. Data has been collected through the analysis tool Optram and the asset register BIS, as well as document studies, observations and interviews with involved actors. The analysis is based on the "Seven improvement tools” and has mainly been performed with the aid of Pivot tables in Microsoft Excel.
The result includes identified causes to track geometry faults and related suggestions for actions. The result also pinpoints weaknesses in the machine-based evaluation of track geometry faults and the management of measurement results. One problem in the management of measurement results is an insufficient integration between different sources and formats of data. For example, the follow-up of track geometry faults, which can be judged either by machine or manually, is based on a manual administration of lists with no clear end-time for correction of fault. A related example is that track geometry faults that are registered in Optram are not found in 0felia. Another example of insufficient integration is dissimilarities between different measurement conditions, for example between heavy iron ore trains, lighter measurement wagons, and un-weighted manual measurements. These differences lead to unwanted events such as undetected faults, insufficient fault localization, and “no fault found”. To detect track geometry faults that are present during iron ore traffic, the measurement wagons of today have to be further developed, or the iron ore trains need to be instrumented. The localization of faults is hampered by the insufficient positioning of measurement results; however, today there is available GPS-technology that should be possible to use in order to greatly enhance the positioning, both within and between measurements. The latter should also contribute to an improved analysis of failure development and a more condition-based maintenance practice. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/4225973
- author
- Taha, Mohammad
- organization
- year
- 2014
- type
- M2 - Bachelor Degree
- subject
- language
- Swedish
- id
- 4225973
- date added to LUP
- 2014-01-03 03:44:14
- date last changed
- 2018-10-18 10:28:14
@misc{4225973,
abstract = {{A train accident at high speeds can result in serious consequences, and in worst case the loss of human life. Hence, there are stringent requirements related to traffic safety on the railway system. These requirements are valid for both the infrastructure and the rolling stock.
The overall purpose of this work is to increase the understanding of the management of safety critical faults within the railway system, and thereby support an effective management of safety critical faults with maintained or increased safety. The work explores how the evaluation and follow-up of safety critical faults are performed and what facts that decisions about actions related to safety critical faults are based on. The goal of the work is to identify overarching suggestions for actions to improve the management of safety critical infrastructure faults within the Swedish railway, by an analysis of data obtained from measurement wagons.
The overarching methodology in this work is a case study of the Iron ore line. Data has been collected through the analysis tool Optram and the asset register BIS, as well as document studies, observations and interviews with involved actors. The analysis is based on the "Seven improvement tools” and has mainly been performed with the aid of Pivot tables in Microsoft Excel.
The result includes identified causes to track geometry faults and related suggestions for actions. The result also pinpoints weaknesses in the machine-based evaluation of track geometry faults and the management of measurement results. One problem in the management of measurement results is an insufficient integration between different sources and formats of data. For example, the follow-up of track geometry faults, which can be judged either by machine or manually, is based on a manual administration of lists with no clear end-time for correction of fault. A related example is that track geometry faults that are registered in Optram are not found in 0felia. Another example of insufficient integration is dissimilarities between different measurement conditions, for example between heavy iron ore trains, lighter measurement wagons, and un-weighted manual measurements. These differences lead to unwanted events such as undetected faults, insufficient fault localization, and “no fault found”. To detect track geometry faults that are present during iron ore traffic, the measurement wagons of today have to be further developed, or the iron ore trains need to be instrumented. The localization of faults is hampered by the insufficient positioning of measurement results; however, today there is available GPS-technology that should be possible to use in order to greatly enhance the positioning, both within and between measurements. The latter should also contribute to an improved analysis of failure development and a more condition-based maintenance practice.}},
author = {{Taha, Mohammad}},
language = {{swe}},
note = {{Student Paper}},
title = {{Hantering av säkerhetsfarliga fel inom järnvägsinfrastruktur utifrån tillståndsbedömning med mätvagn}},
year = {{2014}},
}